Document Part # 026-4280 Rev 1
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14 Digital Inputs
The XM600 series can support up to 3 free of voltage contact configurable digital inputs (depending on the models). They are
configurable via i#F parameter
14.1. Generic Alarm (EAL)
As soon as the digital input 1, 2, or 3 is activated the unit will wait for “
d1d
” or “
d2d
” or “
d3d
”time delay before signaling the
“EAL” alarm message. The outputs status do not change. The alarm stops just after the digital input is deactivated.
14.2. Serious Alarm Mode (BAL)
When the digital input is activated, the unit will wait for “
d1d
” or “
d2d
” or “
d3d
” delay before signaling the “
BAL
” alarm
message. The relay outputs are switched OFF. The alarm will stop as soon as the digital input is deactivated.
14.3. Pressure Switch (PAL)
If during the interval time set by “
d1d
” or “
d2d
” or “
d3d
” parameter, the pressure switch has reached the number of activation
of the “
nPS
” parameter, the “
CA
” pressure alarm message will be displayed. The compressor and the regulation are stopped.
When the digital input is ON the compressor is always OFF.
If the nPS activation in the d#d time is reached, switch off and on
the instrument to restart normal regulation.
14.4. Door Switch Input (dor)
It signals the door status and the corresponding relay output status through the “
odc
” parameter: no = normal (any change);
Fan = Fan OFF; C
Pr
= Compressor OFF;
F_C
= Compressor and fan OFF. Since the door is opened, after the delay time set through
parameter “d
#d
”, the door alarm is enabled, the display shows the message “
dA
” and
the regulation restarts after rrd time.
The alarm stops as soon as the external digital input is disabled again. With the door open, the high and low temperature alarms
are disabled.
14.5. Start Defrost (DEF)
It executes a defrost if there are the right conditions. After the defrost is finished, the normal regulation will restart only if the
digital input is disabled otherwise the instrument will wait until the “
Mdf
” safety time is expired.
14.6. Relay Aux Actuation (AUS)
This function allows to turn ON and OFF the auxiliary relay by using the digital input as external switch.
14.7. Relay Light Actuation (LIG)
This function allows to turn ON and OFF the light relay by using the digital input as external switch.
14.8. Remote ON/OFF (ONF)
This function allows to switch ON and OFF the instrument.
EMU
Previous versions emulation (2V8, 3V8, 4V2) It allows the controller to be used in a LAN of controllers
with previous versions:
2V8 = it emulates version 2.8
3V8 = it emulates version 3.8
4V2 = it emulates version 4.2
rEL
Release software: (read only) Software version of the microprocessor.
SrL
Software sub-release: (read only) for internal use
Ptb
Parameter table: (read only) it shows the original code of the Emerson parameter map.
Pr2
Access to the protected parameter list (read only).
Parameter
Description
Table 13-1 - Parameter List